uk cobra 29 LTD ST ouptput mod fm

davedonna · Post by **davedonna** » Saturday 29th Mar 2008, 0:06

hi can any one help me

i have a cobra uk 29 ltd st using pll 72322

i have replaced the final with a 1969 and returned L301 L302 L303 AND RV 201 but i can only get 6 watts out of it can any one help what am i doing wrong ??

do i have to disable the sound tracker as it dont work any way

i am new to doing cb mods

zodiac · Post by **zodiac** » Saturday 29th Mar 2008, 3:41

Hi Dave,
Try adjusting the Rf power at VR203, front right hand corner of the radio.
Dave Oldham.

davedonna · Post by **davedonna** » Saturday 29th Mar 2008, 5:07

sorry made a error ment to say vr 203

i have put it flat out still no luck

any other ideas

the radio is using a stock pre driver 2314

could this be changed and it so what could i put in its place

i was also told that i could jumper the resistor from the bac of the final to the pre driver

zodiac · Post by **zodiac** » Saturday 29th Mar 2008, 11:59

It could be that the 1969 you fitted is a fake or a poor copy.
I would say that the driver is working fine as you are getting 6w from the radio.
As for fitting a resistor from the final to the driver, i can't say.
Dave.

davedonna · Post by **davedonna** » Sunday 30th Mar 2008, 3:19

thanks for your help

relay stuck on this one

StrightClaw · Post by **StrightClaw** » Monday 31st Mar 2008, 10:24

try this link follow the cobra mod http://www.714xpress.net/714mods1.html#a if you dont get result I don't think (Rick) here would mind asking for help. He's realy good at what he does and a Great GUY.

davedonna · Post by **davedonna** » Tuesday 1st Apr 2008, 5:59

thank you for your help